Matches played on 9 to 13 Sep 2004

 Durham v Leicestershire at Chester-le-Street, 9-12 Sep 2004
 Essex v Derbyshire at Chelmsford, 9-12 Sep 2004
 Glamorgan v Nottinghamshire at Cardiff, 10-13 Sep 2004
 Somerset v Yorkshire at Taunton, 10-13 Sep 2004